is power factor correction related with vector group of transformer i.e:Dyn11?

1 Answers  

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For electrical designers what are the standard should know? i want learn about this standards. how to get information/reference. anybody help in this regards please.

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how the phase convertor changes the no. of phases

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Less cost of delta connection over star connection a. No fourth neautral wire

1 Answers  

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can we use ps class in combination with protection class in differential protection and over current protection.

1 Answers  

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while doing the excitation current test on power transformer what is the value of voltage to be applied? Nomonal rated voltage or 10% of rated voltage? Is it necessary to apply on high voltage side?

1 Answers   ACC,

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140 is load amps for a equipments and what ratio of CT requied for installimg ammeter to amps montering purpose?

1 Answers  

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What is the working principle of servo motor? And explain it.

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What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket

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How the unidirectional torque produced in dc motor

2 Answers   CGL, Sail,

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what is cathodic protection and why it use in industries?

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What is the percentage loss for aluminium wire for HT line more than 11KVa

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